in the United States. These were followed by Master Tracks in 1985, and Master Tracks Pro in 1986. This software pushed the Apple II to its limits, working with an optional card to extend the Apple's memory from 48K to 2M. In 1987, after Melcher left Passport, Master Tracks Pro was completely rewritten for the Apple Macintosh, and later the Atari ST series computers, and still exists for Windows and Apple O/Ses. Nine MIDI files by the company were included in Windows 3.0 with Multimedia Extensions. From Windows 95 to 2000, only PASSPORT.MID, and CANYON.MID ("Trip Through the Grand Canyon" composed by George Stone) remained, which are located in the MEDIA directory. Windows 3.1 only included the latter. Other applications PolyWriter, Passport's first music notation application, was released in 1984, followed by Encore, a professional music notation application capable of creating high-quality scores. The Encore feature set was adapted to different markets and sold as Rhapsody, MusicTime and MusicTime Deluxe. There was also a version called music@Passport, an attempt to integrate web-based music publishing into a desktop notation editor. Passport Memphis was a guitar tablature creation application that offered an easy to use drag-and-drop interface that enabled the user to create and print easy-to-read tabs. Alchemy was a waveform audio editor, originally developed by Blank Software and subsequently purchased by Passport, that integrated Macintosh computers with most current digital sampler brands that supported the MIDI Sample Dump Standard, including Akai, Casio, E-mu, Ensoniq, Korg, Kurzweil, Peavey and Roland. Later versions allowed users to create a sound library that could be shared those sounds across multiple sampler formats. The final version, version 3.0, was released in 1996. The professional standard SCORE music engraving program was written by Leland Smith with additions by Perry Devine of Passport Designs and released by the company in 1987. Shifting focus from music software to the nascent "multimedia" market, they introduced Passport Producer in 1992, and Producer Pro 1.0 in 1994. Sale of the company The company sold its assets to G-VOX in 1998, when Passport Designs ceased to exist as a company. In August 2013, G-VOX sold the rights to most of its software (Encore, MusicTime Deluxe, MasterTracks Pro, Bring Music to Life) to Passport Music Software, LLC. On 31 January 2022 Passport Music Software, LLC ceased trading and offered the company and its intellectual property for sale. In mid-2022 the original developer of Encore,